1. It is Excuisitely manufactured with its reasonable contruction and superior quality.2. It is equipped with cam motion take up lever, Oscillating Shuttle and Straight lockstitch3. It can be used according to consumer's requirements in threadle type, hand-operated type or with electric motor installation4. Suitable for families and garment factories in sewing cotton, woolen, Silk Fabrics and sewing for Embroidery and also can do heavy Material Having Been used for 100 yeas, This sewing machine is still popular today. With Simple but reliableand strong structure, this machine is widely used in household seiwng. It can be operated manually or by Mini sewing machine motor that can be easily mounted on the machines.JA1-1: The Original, Basic ModelJA2-1: With Drop Reverse Seam FunctionJA2-2: With Drop Feed-Dog That Allows limited Embroidery Work Specification:Height of Presser Foot: 7mmStitch length: 5mmPacking: 42x20x29CM/CTN/set1x20ft Q'ty: 1270sets1x40ft Q'ty: 2350sets